Re: [Gumstix-users] LCD and Keyboard questions

[Jon M. <jm...@rm...>]

Dan Taylor wrote:

>Regardless of the specific application and whether or not a PDA would
>be a better option...
>
>What information is available on driving the aforementioned display
>with the gumstix?  Has anyone done it?  Are there drivers and hardware
>info available?
>
>VB
>
>Dan
>
>  
>

Well the PXA255 manual is an excellent starting place. I have an old 
640x200 LCD just laying in my junk bin that, after reviewing the specs, 
should work with the gumstix. Nobody that I know of has hooked up this 
particular model to the gumstix, but looking at the kinds of pins the 
PXA255 has and looking at the Linux kernel source it should be possible.

I recommend you compare the specs for the LCD you wish to purchase with 
the PXA255 manual and the Linux kernel source(drivers/video/pxafb.c). 
Once you have figured out how to wire it up without buying it, then you 
can consider trying it out. I haven't seen anyone posting pictures of 
their gumstix+lcd yet, so this is still all theoretical as far as I'm 
concerned.

TimeLine - http://www.timeline-inc.com/lcd.html - carries the best 
prices on the lowest-end graphic LCDs
EarthLCD - http://www.earthlcd.com/ - carries the widest selection of 
LCDs that I know of on the net.

ps - I'm pretty sure u-boot won't display anything on your LCD. You may 
or may not want to hack u-boot to at least do some test patterns on the 
display on boot to save some time diagnosing your LCD else you have to 
wait for Linux to start booting.

-- 
Jon Mayo
<jm...@rm...>